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		No cover image available Mineral nutrition of plants by De Silva, M.A.T Material type: Text; Format: print ; Literary form: Not fiction Language: English Publication details: Colombo National science council 1980 Availability: Items available for loan: Library National Museum Colombo - Sri Lanka (1)Call number: 581.13 DES. Place hold Add to cart (remove)
		No cover image available Sri lanka science & techonology indicators by De Silva M.A.T Material type: Text; Format: print ; Literary form: Not fiction Language: English Publication details: National resouvces engrgy & science authority of Sri lanka 1996 Availability: Items available for loan: Library National Museum Colombo - Sri Lanka (1)Call number: 6 NSF. Place hold Add to cart (remove)
		No cover image available Unesco study of an international information sysstem relating to new and renewable sources of energy by De Silva, M.A.T Material type: Text; Format: print ; Literary form: Not fiction Language: English Publication details: 1980 Availability: Items available for loan: Library National Museum Colombo - Sri Lanka (1)Call number: (x)620.9:659.2:0255 UNE. Place hold Add to cart (remove)

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